/usr/share/doc/courier-faxmail/NEWS.Debian.gz

courier-imap (0.58.0.20080127-1) unstable; urgency=low
Mismatches between ownership of the mailbox directory and the
ownership retrieved from the account database can cause mysterious
error messages. To prevent these a sanity check was added to Courier
IMAP. Such mismatches trigger the following error on login:
BYE [ALERT] Fatal error: Account's mailbox directory is not ow
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